Was Subject: Re: [time-nuts] GPS Antenna Feed Line Decision kb...@n1k.org said: > There is pretty much no experiment you could run that would show a > difference between the two. With a normal GPS, the âfront endâ of the > radio > is in the antenna. The filtering and RF amplification there determine a lot > of things. The cable is just a chunk of wire in the middle of the system.
Does that depend on the antenna (and location) being "good" and both coaxes being good-enough so that the receiver always has a good signal? Alternatively, if the signal is good, you can't tell the difference in a few db of attenuation. But suppose the antenna location isn't good. How can I tell if it is good-enough? Or how can I compare location A with location B? The best I have been able to come up requires two identical receivers. You can verify that they are identical, or at least close enough, by running them from a single antenna with a splitter. I haven't gotten past that. Assuming you had a not-good antenna, is there any numerical scale that would be useful to describe its goodness? -- These are my opinions. I hate spam.
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